Finding the Fourth Proportional to 22,818.94, 31,489.78 and 12,747.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,818.94 : 31,489.78 = 12,747.52 : x
2. Step 2: Convert to fraction form
   22,818.94/31,489.78 = 12,747.52/x
3. Step 3: Cross multiply
   22,818.94x = 31,489.78 × 12,747.52
4. Step 4: Simplify right side
   22,818.94x = 401,416,600.35
5. Step 5: Solve for x
   x = 401,416,600.35/22,818.94
6. Step 6: Final answer
   x = 17,591.38